/**
* Constructor.
*
* @param threads number of threads to use.
* @param pool ThreadPool to use.
* @param pl pair selection strategy
*/
public GroebnerBaseDistributedMPI(int threads, ThreadPool pool, PairList<C> pl)
throws IOException {
super(new ReductionPar<C>(), pl);
int size = 0;
try {
engine = MPIEngine.getCommunicator();
size = engine.Size();
} catch (MPIException e) {
throw new IOException(e);
}
if (size < 2) {
throw new IllegalArgumentException("Minimal 2 MPI processes required, not " + size);
}
if (threads != size || pool.getNumber() != size) {
throw new IllegalArgumentException(
"threads != size: " + threads + " != " + size + ", #pool " + pool.getNumber());
}
this.threads = threads;
this.pool = pool;
}
